A place of reliable and bountiful hook-up opportunities. Similar to the phrase cash cow but for sex rather than money.
Man, I've tagged 3 girls from my yoga class already. That place is definitely my ass cow.
by Timmy Tulip February 02, 2011
one who is such a jerkoff that no other term bearing the word ass would apply to him. Asscow must be used to sufficiently express his overall.....well, asscowness.
I can't believe you gave my monkey porn to jack off to, you asscow!
by GTmiata November 30, 2003